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A $10,000 reward is being offered for information leading to an arrest.

The dynamite was taken from a construction site near Norton Commons.

Authorities said someone broke into a container on the site and stole the explosives.

"Any time explosives are stolen, we have a concern for public safety," ATF Special Agent Stuart Lowrey said.

Lowrey said they believe the explosives were taken sometime between April 10 and April 12.

LMPD, Kentucky State Police and the ATF were notified after construction workers returned April 13.

"People who work at the site, who frequent the area of the magazine on a daily basis, they noticed it during the day on the 13th,” Lowrey said. "We believe that the explosives were properly stored within the magazine. The magazine had been forcibly, appeared to be forcibly, broken into.”

According to Norton Commons, the dynamite was taken from a construction site at their North Village.

The ATF identified the stolen explosives as Dyno Nobel Unimax dynamite, which is packaged in a cylindrical wrapper measuring approximately 2 inches by 16 inches, and Dyno AP emulsion, also packaged in a cylindrical wrapper measuring approximately 1¼ inches by 8 inches.

"These are common explosives that are used at construction sites for underground work, breaking up rock, disrupting the ground,” Lowrey said.

According to the ATF, the situation is unusual. There were only 16 explosive thefts last year.

The last theft of explosives in the Louisville area was in 2012.

"There are a variety of reasons people might break into a construction site. We know that tools and other items are often stolen. We have no specific indication the theft occurred by someone who knew what was in the container," Lowrey said.

A Norton Commons spokeswoman issued the following statement:

"The contractor and the ATF have assured us the materials were stored in accordance with all applicable laws and regulations. The community and contractors are working with authorities on this matter and hope to see it resolved in the near future.”

Metro police said there have been no direct threats of using the explosives.

Anyone with information on the crime is asked to call the ATF at 1-888-ATF-TIPS or Metro Police at 574-LMPD.